查询词典 membranes

The expression of ILK in the preretinal membranes in PDR indicate that ILK involves in the pathological process of neovascularization in PDR. Intravitreal injection of Avastin can decrease the numbers of endothelial cells in the proliferative fibrovascular membranes, and it also can down-regulate the expression of VEGF and HIF-1αprotein, but it can not affect the expression of ILK protein.

结论1。人PDR增殖膜中的新生血管有ILK表达，提示ILK参与了视网膜新生血管的形成过程；玻璃体内注射Avastin治疗PDR，能够减少视网膜新生血管内皮细胞数量，下调HIF-1α、VEGF在增殖膜的表达，但不能下调ILK的表达。

Results:①As for slow and quick transferring methods, the strips of prestained marker in nitrocellulose membrane were stronger than those of nylon and PVDF membranes, and the face and reverso sides of nylon and PVDF membranes were easily confused;②The picture of PVDF through DAB method was slightly clearer than that through nitrocellulose and nylon membrane, and the quick transferring strips were not so regular as the slow transferring strips.

结果1。在快慢转法中硝纤膜的蛋白预染marker条带略强于尼龙膜，而尼龙膜又略强于PVDF膜； PVDF膜和尼龙膜的正反面易于混淆，而硝纤膜的正反面不易混淆。2。

In previous studies, only spherulitic structures of PVDF membranes prepared by PVDF/single diluent systems via solid-liquid phase separation were obtained. The PVDF membranes with spherulitic structures always present poor mechanical properties, dense skin layers and wide pore size distribution.

在以往的研究中，PVDF微孔膜大多数选用的是单一稀释剂，通过发生固—液相分离制备的，所得到的膜结构都是球晶状结构，具备这种结构的膜往往存在膜的力学强度差、皮层致密和孔径分布宽等缺点。

They encompass the following broad bands of biological roles:(1) basic structural units of cellular membranes and cytologically distinct subcellular bodies such as chloroplasts and mitochondria;(2) compartmentalizing units for metabolically active proteins localized in membranes;(3) a store of chemical energy and carbon skeletons; and (4) primary transport systems of nonpolar material through biological fluids.

这类物质无论在功能上还是结构上都有明显不同，它们具有以下广泛的生物学作用。1。细胞膜和细胞中亚细胞器，如叶绿体和线粒体的基本结构单元。2。定位于细胞膜上具有代谢活性蛋白质的划分单位。3。化学能和碳骨架的储藏物质。4。以生物流的形式使细胞内非极性物质得以运输。

The gene launches a biochemical process in which a molecule called plasmin perforates the membranes of tissues, causing the membranes to break down and allowing the cancer cells to escape into the bloodstream and to adjacent tissues.

这种基因启动了一种生化过程，在这个过程中，一种叫做血浆酶的分子能够在组织膜上打孔，并导致膜降解，从而使癌细胞能够流窜到血管和临近组织。

In this contribution novel acid-base sulfonated poly(phthalazinone ether nitrile ketone)s membranes are introduced.The membranes are composed of SPPENKs as the acidic compounds,and polyetherimide as the basic compounds,furthermore,redissolving SPPENKs and PEI in N-methylpyrrolidone then cast directly onto clean glass substrates in dust free environment at 60℃ aiming at enhancing membrane toughness and other relative properties.

以合成的一系列不同磺化度的碘化聚芳醚腈酮为acidic聚合物，以聚芳醚酰亚胺为basic聚合物，并将其溶解在 N -甲基-2-吡咯烷酮中配成质量分数为10%的成膜液，60℃下刮制成膜，制得acid-base型磺化聚芳醚腈酮质子导电了聚合物膜。

Results: After cryofixation,basement membranes of skeletal muscle consisted of only one electron dense layer, T tubules were round, core cylinders were observed in terminal cisternae and there were thread-like protein particles on the membranes of terminal cisternae.

结果：冷冻固定后，缝匠肌基膜仅仅由电子密度高的一层组成；横小管为圆形；终池内含有电子密度高的环形物，终池膜上存在一排线状电子密度高的蛋白颗粒。

However after chemical fixation, basement membranes showed 2 main layers: the electron-lucent "lamina lucida" and the electron-dense "lamina densa"; T tubules were flat; there existed only some electron dense particles in terminal cisternae, the feet process projected from membranes of terminal cisternae toward T tubules.

化学固定后，缝匠肌基膜由两层组成：一层电子密度低，另一层电子密度高；横小管为扁平状或哑铃状；终池内仅有一些散在的电子密度高的颗粒，终池膜上有几个脚状突起伸向横小管。

Therefore,it is necessary to develop new routes to prepare anion exchange membranes without such chloromethylation process.As for cation exchange membranes, mostly-perfluorinated sulfonic acid ionomers,such as Nafion~ series,have been wildly used due to their high proton conductivity and substantial durability.

对于强碱性的阴离子交换膜的制备，由于传统路线中的卤甲基化步骤中不可避免的采用强致癌物质二氯甲醚，因此无论是从经济成本还是环境保护方面，开发不采用氯甲基化步骤的阴离子交换膜制备方法是目前的一个迫切要求。

The electrode showed comparable analytical performance in the micromolar range to Pb-ISEs with conventional poly-based membranes containing neutral ionophore and with solidstate membranes containing a mixture of lead sulphide and silver sulphide.

该电极显示比较分析的绩效micromolar范围以铅太阳能学会与传统的聚为基础的膜含有中性载体和固态膜含有混合物的铅和硫化物硫化银。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。